import {createStore} from "redux";
//组件中的共享数据
const cart=[];
//设置reducer
function reducer(state=cart,action){
	switch(action.type){
		case "加入购物车":
						state.unshift(action.payload);
						return state;
						break;
		case "数量加":
						state[action.payload].num++;
						return state;
						break;
		case "加1":
						state[action.payload].num++;
						return state;
						break;
		case "减1":
						if(state[action.payload].num>1){
							state[action.payload].num--;
						}
						return state;
						break;
		case "删除":
						state.splice(action.payload,1)
						return state;
						break;
		default:return state;
	}
}
//创建store
var store=createStore(reducer);
export default store